The Hoover 133 Harmony Bags are vacuum cleaner bags designed for the Electrolux brand. These bags are specifically made to fit the Hoover 133 Harmony model, ensuring a perfect fit for optimal performance. With the Electrolux brand known for its high-quality appliances, these bags are designed to provide efficient filtration and trapping of dirt and debris, keeping your vacuum cleaner running smoothly and maintaining the overall cleanliness of your home. Models Z 2520,30 50